Saggar



March 8, 1932. Divv ROBISON 1,848,200

SAGGAR Filed Sept. 18, 1928 sj'fomrao ,STATES:

Still another object of my invention is the Patented Mar, 8; 1932 A ENT orrlcaq "DAVID v. nonrson orznnnsvrntnlonro, ASSIGNOR tro'rnn MosAIo co m,

Y V n ooaromrronor 01110 I SAGGAR" Application: died September 18,L1928." Seria1 no. $026,730.

This invention relates to improvements in saggars. x'

;-r One of the objectsof this invention is to produce a saggar particularly adapted for burning tile, by the use of which the tile to be" burned may be stacked Within and removed from thegsaggarnwith great facility and economy of time. I

Another object of this invention isto prodnce a'saggar :of-refractorymaterial having means on the vertical Walls for" supporting the tile during burning and preferably having tile-supporting and 'separating means projecting from the verticalwalls thereof.

' production of a saggar having tile-supporting and separating means formed integrally With the vertical Walls'of the saggar.

Still anotherobject of this invention is" to produce a saggar having a compartment and preferably a-plurality or series of compartments of an area approximately similar to the tile unit to be burned and having means,

preferably formedjintegrally With the vertical Wallsof a compartment, for supporting and separating the tiles during burning.

Still another object of my invention is to 7 enable thedivision of a saggar bypartitions 7 ably of proper dimensionto enable a stack of tiles of single-tile dimensions to be arranged in each compartment. 7

Still another obj ect of this invention" is V tile-supporting brackets having a configura tion'which will permit ready'insertion, supinto a series of compartments, each prefer- 9 Fig. 1' is aside elevation porting during burning and removal of 'bodying my invention;

glazed tilevvithout marringthe glazed portion andicontact of the Wallsofythe, saggar 'With rgl edportion of the tile.:- j I ll anotherobject of the invention is to provide-a method by which saggarscom posed of refractory materialmay beformed Withpartitions for stacking single rows of 7 tile.

' Still another object ofithe invention is to 1 provide, in a saggar, tile-supporting means preferably comprising a suitably spaced brackets havingga tile seat provided. With 'wallportions arrangedto prevent contact With the glazed portionof the tile and p'ref-' erably provided With a spacing ribof less height than the thickness of the tile, whereby the tile may he slid into the seat WlthOlltCOl'ltact'ofthe glazed portion Withany part of the saggar; I

1 Another object of the inventionis to proviclea saggar having. a series of compartments formed by partitions spaced apart slightly greater thanpthewidth of the'tile orunit to be burned therein and preferably having the supporting brackets formed integrally with and projecting from each of i the internal side vertical Wallsof the compartment, each bracketfpreferably having a fiat horizontal vtilesupporting portion and I a verticalvvalLseparatingrib extending outwardly from .the Wall of the compartment and beingofiless heightthan the thickness of the glazed tileiso' astofiprevent contact 7 i of the glazed portion .of the tile with the snpport or, wallsofthe sagga-r and'still to pe'r-- mit insertion, "burning :and removal of the tile With great facility-and economy of time. s I

With thesean'd other objects in View, the

"inventioncomprises the combination of members and 'arrangementof parts so combined as to co-act and cooperate with: each'other in the performance of the function and the accomplishment of'the' results herein conteme plated, and comprises in one of its adaptations the species or preferred fo'rmillustrated in the accompanying drawings, in Which': I

of-a saggar em- 3O I .dows 1 ,.as shown in Fig. 4, to permit the more 1 tween the same.

a Fig. 2 is a section on the line 2-2 of Fig. 1, looking in the direction of the arrow;

Fig. 3 is a section on the line 33 of Fig. 1, looking in the direction of the arrow; and

Fig. 4 is a section similar to Fig. 3 of a slightly modified form of my invention.

Referring now to these drawings, which illustrate -a preferred embodiment of my invention, 1 indicates a tile-burning saggar which may be com osed of the conventional "refractory materia heretofore .used in saggars.

In accordance with the preferred form .of my invention, illustrated, the saggar 1 is provided with a plurality of tile-burning compartments, each of which is preferably of such confi uration and dimensions as to enable the ti e units to be supported fIOlIl'tllG vertical walls of the saggiir compartment-and preferably to permit a single stack of tiles tobe mounted therein. In the preferred form of my invention,'the saggar l comprises a rectangular fboxshaped casing comprising horizontal top and bottom 1*, 1 and vertical side walls 1, 1*. The saggar casing 1 is preferablyo en atits frontside 1to permit in-.

nation t ereinto of the tile to be burned and,

as shown in Figs. 1 to 3, is closed at the opposite or rearside Ithough, if desired, this rear side my be provided with openings or win- :ready entrance of heat therethrough.

In the preferred form illustrated, the saggar is composed of. three compartments '2, 3 and 4 respectively. These compartments are formed by extending partitions 5 and 6 from the to wall .of the casing 1 tothe bottom wall t ereof. I

The partitions 5 and 6 are preferably iorrmed integrally with the saggar casing, the whole being molded together. The portions of the partitions 5 and 6 at the junction between the same and the top and bottom of the casing 'have a tendency, during drying after the molding thereof, to shrink away from the said walls of the casing and in order to provide a more secure connection orv 'oint between the ends of'the partitions an the walls of the casing,-I preferably, during the molding operation or just subsequent thereto, apply pressure on the casing wall adjacent to the joint with a partition, thus producing de- 7 at opposite sides of thepartitions. This pressure forces material toward the junction between said partition and the easing wall and I am thus enabled to produce a more compact and stronger connection be- In the preferred form of my invention shown, I alsopreferably at each corner or joint between a side wall and the top and bottom make similar de ressions to consolidate the material around t 1e joints at such corners of the casing, thus similarly strengthening the connection between the horizontal and vertical walls of the casing by the compacting action induced by the formation of such depressions.

Each of the compartments are, as aforesaid, preferably formed of a width slightly greater than the width of the unit to be burned and I provide on opposite vertical walls of each compartment tile supporting meanspreferably comprising, as shown, a

series .of oppositely-disposed and outwardlyiprojecting pairs of supportin brackets or spacingrib' will prevent-contact of the glazed portion of the tile with the wall and thus prevent marring ordefacing of such glazed portionfit being understood that any marring or defacing of the tile will cause-the same to become second grade or entirely defective. tile and of much less value than first grade or erfect tile. I

t will be understood that it is important that the glazed portion of the tile be prevented from contact with the walls of the sagg'ar during insertion into the tile seat in the saggar and during the subsequent handling and burning thereof. It is also important that the tiles be slightly spaced apart so as to permit heat to penetrate between the same and it is also desirable to burn as many tiles as possible at a single, operation. I, therefore, provide between'the bottom portion of each bracket and the tile-seat of the adjacent bracket a space somewhat greater than the width of the tile so that a glazed tile may be slid into the seat without danger of contact with the bracket above the same.

In the preferred form of my invention shown, my improved saggar has'three compartments,.as aforesaid, and the opposite vertical walls of each of these compartments are provided with tile-supporting brackets havfmg tile seats and spacing ribs such as hereinabove described. The spacing ribs are gar, the ribs on the rear wall will also be partially cut away, having rib sections at opposite sides of the wall sections of tberear wall which remain, thus spacing the rear wall from the glazed portion of the tile and servi ing asa stop for the tile upon insertion there of into the saggar.

Having described my invention, I claim 1. A saggar comprising top and bottom horizontal walls andvertically-disposed side v walls connectedthereto and tile-supporting brackets formed integrally with the vertical walls for supporting tile during burning thereof, .each bracket having ahorizontal tileranged between and connecting two of said walls, the materialat the joints between said intermediate partition and the casing walls being compacted to provide a connection of increased strength therebetween.

specification.

DAVID v. ROBISON;

to the foregoing tile-supporting brackets for supporting tiles 7 from the side walls of each of the compartments during burning of such tile,- each bracket having a horizontal tile-seating portion and means associated with said seating portion. for preventing contact of the top glazed portion of the tile with the walls of thecompartment. j

A saggar comprising a rectangular casing divided into a plurality of rectangular vertically-disposed compartments, each having horizontally-disposed top and bottom walls and vertically-disposed side walls, and

means formed integrally with "the, vertical walls for supporting tiles within the casing.

4. A saggar comprising a substantially rectangular casing divided into a plurality of substantially rectangular stacking compartment-sof horizontal dimensions substantially similar to a tile-unit, each compartment having tile-supporting means formed integrally with the walls thereof.

5. A saggar comprising a substantially recs tangular casingdivided into a plurality of tile-burning compartments, each compartmerit having tile-supporting means formed. integrally with and extending outwardly from the walls thereof and comprising proc jec'ting brackets having a horizontal tile V seating portlon and means associated with "said'seat for preventing contact of the top glazed portion ofthe tile with the wallsof the compartment.

6. A saggar comprisinga substantially rec-.

i tangular casing divided into a plurality of tile-burning compartments, each c'ompart-,

ment having tile-supporting means formed integrally with and extending outwardly 1 from the. walls thereof and comprising projecting brackets having a horizontal tile-seating'portion and 'a vertical spacing rib portipn of less height than the thickness of a ti e.

c 7. A saggar composed of refractory material and comprising a casing having top, bot tom and end walls and also provided with an integrally-formed intermediate partition ar- 70 In witness whereof, I have s1gned my name 

